1
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Zhou W, Zhang R, Cai Z, Wu F, Hu Y, Huang C, Hu K, Chen Y. Preparation and properties of pH-sensitive cationic starch nanoparticles. Food Chem 2024; 437:137916. [PMID: 37944390 DOI: 10.1016/j.foodchem.2023.137916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 10/13/2023] [Accepted: 10/30/2023] [Indexed: 11/12/2023]
Abstract
Environmentally friendly and outstanding pH responsiveness cationic starch nanoparticles (CSNP) were prepared through ethanol precipitation from pH-sensitive starch, which preparation of cationic starch (CS) by grafting copolymerization with dimethylaminoethyl methacrylate (DMAEMA). In this work, CSNP showed a nanometer size and regular sphere, highly free-flowing molecular chains, and outstanding pH responsiveness which was proved by the high stability of its stabilized emulsion through 6 emulsification/ demulsification transition. The result of the SEM and particle size distribution indicated that the size of the CSNP-0 was about 800 nm, and decreased with the DMAEMA increased. Moreover, the CSNP-stabilized emulsion was stable at pH = 7 and pH = 12. However, this emulsion exhibited breakage at pH = 2. In addition, the CSNP-stabilized Pickering emulsion achieved an emulsification/demulsification switching by cycling the pH at least 6 times, during which the average droplet size gradually increased. At pH ≥ 7, the emulsions exhibit shear thinning behavior.
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Affiliation(s)
- Wei Zhou
- School of Food Science, Guangdong Pharmaceutical University, Zhongshan, Guangdong Province 528458, China; GDPU-HKU Zhongshan Biomedical Innovation Platform, Zhongshan, Guangdong Province 528458, China
| | - Rui Zhang
- School of Food Science, Guangdong Pharmaceutical University, Zhongshan, Guangdong Province 528458, China; GDPU-HKU Zhongshan Biomedical Innovation Platform, Zhongshan, Guangdong Province 528458, China
| | - Zhen Cai
- School of Food Science, Guangdong Pharmaceutical University, Zhongshan, Guangdong Province 528458, China; GDPU-HKU Zhongshan Biomedical Innovation Platform, Zhongshan, Guangdong Province 528458, China
| | - Fangfang Wu
- School of Food Science, Guangdong Pharmaceutical University, Zhongshan, Guangdong Province 528458, China; GDPU-HKU Zhongshan Biomedical Innovation Platform, Zhongshan, Guangdong Province 528458, China
| | - Yong Hu
- School of Food Science, Guangdong Pharmaceutical University, Zhongshan, Guangdong Province 528458, China; GDPU-HKU Zhongshan Biomedical Innovation Platform, Zhongshan, Guangdong Province 528458, China
| | - Chao Huang
- School of Food Science, Guangdong Pharmaceutical University, Zhongshan, Guangdong Province 528458, China; GDPU-HKU Zhongshan Biomedical Innovation Platform, Zhongshan, Guangdong Province 528458, China
| | - Kun Hu
- School of Food Science, Guangdong Pharmaceutical University, Zhongshan, Guangdong Province 528458, China; GDPU-HKU Zhongshan Biomedical Innovation Platform, Zhongshan, Guangdong Province 528458, China.
| | - Yun Chen
- School of Food Science, Guangdong Pharmaceutical University, Zhongshan, Guangdong Province 528458, China; GDPU-HKU Zhongshan Biomedical Innovation Platform, Zhongshan, Guangdong Province 528458, China.
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2
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Zhang W, Zhao G, Huang B, He R, Zhai L, Yang L. Effects of dual modification by cationization and acetylation on the physicochemical and structural characteristics of glutinous rice starch. Int J Biol Macromol 2024; 255:128277. [PMID: 37992918 DOI: 10.1016/j.ijbiomac.2023.128277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 11/14/2023] [Accepted: 11/17/2023] [Indexed: 11/24/2023]
Abstract
In this research, the effects of cationization, acetylation and dual modification by cationization and acetylation on the physicochemical and structural characteristics of glutinous rice starches were investigated. The rapid viscosity analyzer revealed a substantial increased paste viscosity post modification. Particularly, for dually modified starch, the peak viscosity increased from 3071.67 to 4082.00 cP. The freeze-thaw stability substantially enhanced, with both single cationic and dually-modified starches standing out by exhibiting no water syneresis even at 21 freeze-thaw cycles, while native starch exhibited higher syneresis, up to 74.55 %. Both single cationization and cationization-acetylation destroyed the starch granules, characterized by the roughness and cracks. But, for single acetylation, there was no notable changes on granules' morphology. Fourier transform infrared spectroscopy exhibited notable shifts after modification, both acetylation and dual modification, resulting in a new peak at 1728 cm-1. 13C cross-polarization magic angle spinning nuclear magnetic resonance spectra displayed new peaks at 52-55 and 19-22 ppm following cationization and acetylation, respectively. These structural alterations indicate the successful incorporation of functional groups during modification. Overall, this study provides valuable insights for the industrial utilization of these three modified glutinous rice starches.
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Affiliation(s)
- Wangfen Zhang
- School of Food Engineering, Anhui Science and Technology University, 9 Donghua Road, Fengyang 233100, China
| | - Gongqi Zhao
- School of Food Engineering, Anhui Science and Technology University, 9 Donghua Road, Fengyang 233100, China
| | - Biao Huang
- School of Food Engineering, Anhui Science and Technology University, 9 Donghua Road, Fengyang 233100, China
| | - Ruidi He
- School of Food Engineering, Anhui Science and Technology University, 9 Donghua Road, Fengyang 233100, China
| | - Ligong Zhai
- School of Food Engineering, Anhui Science and Technology University, 9 Donghua Road, Fengyang 233100, China
| | - Liping Yang
- School of Food Engineering, Anhui Science and Technology University, 9 Donghua Road, Fengyang 233100, China.
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3
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de Araujo LLGC, Dos S Cescon L, Da Cruz GF, Nascimento RSV. Influence of the cationic degree and molar mass of modified starches on their physicochemical properties and capability to enhance the oil recovery process. Carbohydr Polym 2024; 323:121388. [PMID: 37940282 DOI: 10.1016/j.carbpol.2023.121388] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 08/28/2023] [Accepted: 09/11/2023] [Indexed: 11/10/2023]
Abstract
Polysaccharides and their derivatives are used as additives in numerous petroleum industrial processes, especially in enhanced oil recovery (EOR). There exists however, a lack of studies concerning how their physicochemical properties affect the oil recovery process. This work presents an investigation of a series of 2-hydroxy-3-(trimethylammonium)propyl starches (HTPS) with different molar masses and cationic degrees that are potentially useful for EOR. It was investigated surface/interfacial tensions, rheological profile, emulsion index and wettability alteration. The results provide experimental evidence that the HTPS intrinsic properties affect the measured properties. The HTPS solution/oil interfacial tension (IFT) ranged from a low value of 19.0 to a high value of 34.0 mN/m and correlates positively with the molar mass of the HTPS. In contrast, the rheological behavior displays correlations with the molar mass and the degree of cationization. Furthermore, the 1 % HTPS solutions presented around 10 % of viscosity increase in comparison to brines typically used in waterflooding. The derivative with a higher molar mass and intermediate degree of cationization (HTPS 2) was more effective in changing the wetting condition of an aged limestone with a wettability alteration index (WAI) of 52 % while the commercial surfactant cetyltrimethylammonium bromide (CTAB) presented a WAI of 32.6 %.
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Affiliation(s)
- Lorraine L G C de Araujo
- Instituto de Química - Universidade Federal do Rio de Janeiro, Cidade Universitária, Rio de Janeiro, RJ 21941-909, Brazil; Laboratório de Engenharia e Exploração de Petróleo - Universidade Estadual do Norte Fluminense Darcy Ribeiro, Imboassica, Macaé, RJ 27910-970, Brazil.
| | - Leonardo Dos S Cescon
- Instituto Federal de Educação, Ciência e Tecnologia do Rio de Janeiro - Centro, Nilópolis, RJ 26530-060, Brazil.
| | - Georgiana F Da Cruz
- Laboratório de Engenharia e Exploração de Petróleo - Universidade Estadual do Norte Fluminense Darcy Ribeiro, Imboassica, Macaé, RJ 27910-970, Brazil.
| | - Regina S V Nascimento
- Instituto de Química - Universidade Federal do Rio de Janeiro, Cidade Universitária, Rio de Janeiro, RJ 21941-909, Brazil
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4
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Francolini I, Galantini L, Rea F, Di Cosimo C, Di Cosimo P. Polymeric Wet-Strength Agents in the Paper Industry: An Overview of Mechanisms and Current Challenges. Int J Mol Sci 2023; 24:ijms24119268. [PMID: 37298219 DOI: 10.3390/ijms24119268] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 05/20/2023] [Accepted: 05/23/2023] [Indexed: 06/12/2023] Open
Abstract
Polymeric wet-strength agents are important additives used in the paper industry to improve the mechanical properties of paper products, especially when they come into contact with water. These agents play a crucial role in enhancing the durability, strength, and dimensional stability of paper products. The aim of this review is to provide an overview of the different types of wet-strength agents available and their mechanisms of action. We will also discuss the challenges associated with the use of wet-strength agents and the recent advances in the development of more sustainable and environmentally friendly agents. As the demand for more sustainable and durable paper products continues to grow, the use of wet-strength agents is expected to increase in the coming years.
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Affiliation(s)
- Iolanda Francolini
- Department of Chemistry, Sapienza University of Rome, Piazzale A. Moro, 00185 Rome, Italy
| | - Luciano Galantini
- Department of Chemistry, Sapienza University of Rome, Piazzale A. Moro, 00185 Rome, Italy
| | - Fernando Rea
- Gima Water & Air s.R.l (GWA), Via Fratta Rotonda Vado Largo, 03012 Anagni, Italy
| | - Cristiano Di Cosimo
- Gima Water & Air s.R.l (GWA), Via Fratta Rotonda Vado Largo, 03012 Anagni, Italy
| | - Pierpaolo Di Cosimo
- Gima Water & Air s.R.l (GWA), Via Fratta Rotonda Vado Largo, 03012 Anagni, Italy
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5
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Yin J, Fang K, Li J, Du N, Hu D, Cao D, Tian R, Deng L, Li K. Competitive adsorption mechanisms of pigments in sugarcane juice on starch-based magnetic nanocomposites. Int J Biol Macromol 2023; 231:123134. [PMID: 36657548 DOI: 10.1016/j.ijbiomac.2023.123134] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 11/29/2022] [Accepted: 01/01/2023] [Indexed: 01/18/2023]
Abstract
The pigments in sugarcane result the crystallised sucrose appears unsatisfactorily yellow. In this study, cationic tapioca starch (CTS)-functionalized magnetic nanoparticles (CTS@Fe3O4) were synthesized and used as adsorbents for the removal of undesirable pigments. The adsorption properties of CTS@Fe3O4 were investigated by a sugarcane juice colorant model consisting of caffeic acid (CA), gallic acid (GA) and melanoidin (ME). The equilibrium adsorption capacities of CTS@Fe3O4 for CA, GA, and ME were 185, 160 and 580 mg g-1 at the optimal conditions (60, 60 and 180 mg L-1 initial concentrations, respectively; 0.3 mg mL-1 CTS@Fe3O4 dosage, 313 K temperature, and pH value of 7). The adsorption process was described well by second-order kinetic and Langmuir isotherm models with a high fitting correlation coefficient approaching 1, suggesting that the pigments formed a surface monolayer with a homogenously distributed adsorption energy and was mainly dominated by chemisorption. The thermodynamic parameters (Gibbs free energy <0, enthalpy >0, and entropy >0) revealed that the adsorption process was endothermic and spontaneous. For the binary system, the competitive adsorption between pigments was primarily antagonistic. The speed of adsorption was the main factor affecting competitive adsorption, and the additional adsorption force reduced the effects of coexisting adsorbates.
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Affiliation(s)
- Jiangyu Yin
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Kun Fang
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China; School of Chemistry and Chemical Engineering, School of Resources, Environment and Materials, Guangxi Key Laboratory of Processing for Nonferrous Metallic and Featured Materials Guangxi University, Nanning 530004, Guangxi, China
| | - Jianbin Li
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Nan Du
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Dongbin Hu
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Danyu Cao
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Run Tian
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Ligao Deng
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Kai Li
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China.
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6
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Wasserman LA, Papakhin AA, Krivandin AV, Filatova AG, Borodina ZM, Plashchina IG. Changes in the Structure, Thermodynamic, and Functional Properties of Maize Starch During Mechanical Processing. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B 2022. [DOI: 10.1134/s1990793122010328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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7
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Characterization the structural property and degradation behavior of corn starch in KOH/thiourea aqueous solution. Carbohydr Polym 2021; 270:118363. [PMID: 34364608 DOI: 10.1016/j.carbpol.2021.118363] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 06/14/2021] [Accepted: 06/16/2021] [Indexed: 11/20/2022]
Abstract
Finding an efficient and eco-friendly solution for starch dissolution has attracted considerable attentions in recent years. This study investigated the structural characteristics, and degradation behavior of corn starch in KOH/thiourea aqueous solution by the comparison with DMSO/LiBr and 1-allyl-3-methylimidazolium chloride (AMIMCl). Results showed that KOH/thiourea solution was an effective solvent for corn starch dissolution (30 min with 97.01% solubility). X-ray diffraction (XRD) and 13C CP-MAS NMR spectroscopy revealed that native crystallinity of the corn starch was altered by all tested solvents, especially DMSO/LiBr and AMIMCl. Conversely, this new solvent did not change the primary molecular structure, chain-length distribution, or thermal stability of starch, compared with the native starch. Furthermore, KOH/thiourea solution was more suitable for measuring the molecular weight of corn starch, with a weight-average molecular weight (Mw) of 7.18 × 107 g/mol. Therefore, KOH/thiourea solution is a promising novel solvent for starch dissolution and structural exploration.
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8
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Cationic starch intercalated montmorillonite nanocomposites as natural based adsorbent for dye removal. Carbohydr Polym 2021; 253:117230. [PMID: 33278988 DOI: 10.1016/j.carbpol.2020.117230] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Revised: 08/23/2020] [Accepted: 10/09/2020] [Indexed: 11/24/2022]
Abstract
Cationic starch intercalated montmorillonite (Mt-CST) adsorbent was developed for the removal of basic dyes, namely, Basic Blue (BB66) and Basic Yellow (BY1) from aqueous solution. Cationic starches (CST) containing ammonium groups with the degree of substitution of 0.16 (CST1) and 0.69 (CST2) were successfully prepared from the reaction of low molar mass starch with (3-chloro-2-hydroxypropyl trimethyl) ammonium chloride. A series of Mt-CST nanocomposites were prepared by controlling the mass ratios of Mt:CST. Adsorption of BB66 and BY1 from aqueous solution onto Mt-CST was studied. The adsorption capacity increased with decreasing of cationic groups in the CST or increasing the mass ratios of Mt:CST. The results showed that the Mt-CST11 nanocomposite with the mass ratio of Mt:CST1 of 69: 31 exhibited relatively high adsorption capacities for basic dyes. The results of adsorption behaviors of BY1 on Mt-CST11 and Mt-CST21 indicated that the adsorption processes followed well the Langmuir isotherm.
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9
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Preparation and Optimization of Water-Soluble Cationic Sago Starch with a High Degree of Substitution Using Response Surface Methodology. Polymers (Basel) 2020; 12:polym12112614. [PMID: 33172029 PMCID: PMC7694679 DOI: 10.3390/polym12112614] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Revised: 10/19/2020] [Accepted: 10/20/2020] [Indexed: 12/12/2022] Open
Abstract
Modification and characterizations of cationic sago starch with 3-chloro-2-hydroxypropyl trimethylammonium chloride (CHPTAC) prepared via etherification reaction was reported in this study. The optimization of cationic sago starch modification was performed by utilizing the combination of response surface methodology and central composite design (RSM/CCD). The effect of each variable and the interaction between the three variables, the concentration of CHPTAC, concentration of the catalyst NaOH, and the reaction times on the degree of substitution (DS) of the product were investigated and modeled. Moderate conditions were employed and a water-soluble cationic sago starch with high DS value was obtained. Based on RSM, the highest DS = 1.195 was obtained at optimum conditions: 0.615 mol of CHPTAC concentration (CHPTAC/SS = 5), 30% w/v NaOH, and 5 h reaction time, at 60 °C reaction temperature. Furthermore, the cationic sago starch was characterized using Fourier transform infrared spectroscopy, FTIR, X-ray diffraction, XRD, and field emission scanning electron microscopy, FESEM.
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10
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Chittapun S, Jangyubol K, Charoenrat T, Piyapittayanun C, Kasemwong K. Cationic cassava starch and its composite as flocculants for microalgal biomass separation. Int J Biol Macromol 2020; 161:917-926. [PMID: 32553968 DOI: 10.1016/j.ijbiomac.2020.06.116] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 05/20/2020] [Accepted: 06/11/2020] [Indexed: 10/24/2022]
Abstract
Commercial- and laboratory modified- cationic cassava starches and their composites with magnetic particles were examined for characteristics and separation efficiency. Scanning electron micrographs showed that cationic starch with an increasing degree of substitution (DS) value (0.0180 to 0.91) showed greater clumped polyhedral granules and became markedly enlarged with disintegrated boundaries. Zeta potential analysis revealed that the increase in the DS value in cationic starches resulted in an increase in positive charge. The maximum harvesting efficiency of 92.86 ± 0.46% was achieved when commercial cationic starch with DS 0.040 at 1.0 g L-1 was added to the Chlorella sp. solution. The maximum recovery capacity (10.20 ± 0.16 g DCW g starch-1) was recorded by using commercial cationic starch with DS 0.040 at a lower dosage of 0.1 g L-1. Their composites showed lower separation efficiency than the commercial cationic starches. The results suggest that the commercial cationic cassava starch with 0.040 DS shows great potential as a flocculant for algal separation. This first report of using commercial cationic cassava starch as a flocculant provides a low cost and convenient process to separate algal cells from the culture medium. Moreover, uncontaminated magnetic particle biomass allows for wide range of algal utilization in food and pharmaceutical biotechnologies.
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Affiliation(s)
- Supenya Chittapun
- Department of Biotechnology, Faculty of Science and Technology, Thammasat University, Rangsit Centre, Pathum Thani 12120, Thailand.
| | - Kanthida Jangyubol
- Department of Biotechnology, Faculty of Science and Technology, Thammasat University, Rangsit Centre, Pathum Thani 12120, Thailand
| | - Theppanya Charoenrat
- Department of Biotechnology, Faculty of Science and Technology, Thammasat University, Rangsit Centre, Pathum Thani 12120, Thailand
| | - Chanitchote Piyapittayanun
- Department of Biotechnology, Faculty of Science and Technology, Thammasat University, Rangsit Centre, Pathum Thani 12120, Thailand
| | - Kittiwut Kasemwong
- National Nanotechnology Center, National Science and Technology Development Agency, 111 Thailand Science Park, Phahonyothin Road, Khlong-Luang, Pathumthani 12120, Thailand
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11
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Chang S, Lai H. Starch‐Based Multilayer with pH‐Responsive Behavior Driven by Whey Protein Concentrate: The Effect of Starch Conformation. STARCH-STARKE 2020. [DOI: 10.1002/star.201900277] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Shing‐Yun Chang
- Department of Agricultural ChemistryNational Taiwan University No. 1, Sec. 4, Roosevelt Rd. Taipei 10617 Taiwan
| | - Hsi‐Mei Lai
- Department of Agricultural ChemistryNational Taiwan University No. 1, Sec. 4, Roosevelt Rd. Taipei 10617 Taiwan
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12
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Synthesis and characterization of quaternized Cassia tora gum using Taguchi L’16 approach. Carbohydr Polym 2020; 232:115731. [DOI: 10.1016/j.carbpol.2019.115731] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Revised: 12/04/2019] [Accepted: 12/09/2019] [Indexed: 10/25/2022]
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13
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Chemelli A, Gomernik F, Thaler F, Huber A, Hirn U, Bauer W, Spirk S. Cationic starches in paper-based applications-A review on analytical methods. Carbohydr Polym 2020; 235:115964. [PMID: 32122498 DOI: 10.1016/j.carbpol.2020.115964] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2019] [Revised: 02/04/2020] [Accepted: 02/06/2020] [Indexed: 01/18/2023]
Abstract
This review focuses on cationic starches with a low degree of substitution (<0.06) which are mainly used for production of paper-based products. After a brief introduction on starch in general, cationization pathways and importance of cationic starches in paper production, this review emphasizes on the analytical challenges from different perspectives. These include the different length scales of starches when in solution: the macromolecular level, their assembly into nm aggregates and finally hydrocolloids with hundreds of nanometers of diameter. We give an overview on the current state of the art on the analysis of such challenging samples and aim at providing a guideline for obtaining and presenting reliable analytical data.
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Affiliation(s)
- Angela Chemelli
- Institute of Inorganic Chemistry, Graz University of Technology, Stremayrgasse 9, 8010, Graz, Austria.
| | - Florian Gomernik
- Institute of Bioproducts and Paper Technology, Graz University of Technology, Inffeldgasse 23, 8010, Graz, Austria
| | - Ferula Thaler
- Institute of Inorganic Chemistry, Graz University of Technology, Stremayrgasse 9, 8010, Graz, Austria
| | - Anton Huber
- Institute of Chemistry, University of Graz, Heinrichstrasse 24, 8010, Graz, Austria
| | - Ulrich Hirn
- Institute of Bioproducts and Paper Technology, Graz University of Technology, Inffeldgasse 23, 8010, Graz, Austria
| | - Wolfgang Bauer
- Institute of Bioproducts and Paper Technology, Graz University of Technology, Inffeldgasse 23, 8010, Graz, Austria
| | - Stefan Spirk
- Institute of Bioproducts and Paper Technology, Graz University of Technology, Inffeldgasse 23, 8010, Graz, Austria.
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14
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Gularte MS, Quadrado RFN, Pedra NS, Soares MSP, Bona NP, Spanevello RM, Fajardo AR. Preparation, characterization and antitumor activity of a cationic starch-derivative membrane embedded with a β-cyclodextrin/curcumin inclusion complex. Int J Biol Macromol 2020; 148:140-152. [PMID: 31945443 DOI: 10.1016/j.ijbiomac.2020.01.104] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 11/22/2019] [Accepted: 01/09/2020] [Indexed: 02/07/2023]
Abstract
A membrane of cationic starch-derivative/poly(vinyl alcohol) was prepared and utilized as a support to immobilize a β-cyclodextrin/curcumin inclusion complex. The resulting material (denote as β-CD/CUR-MBN) was characterized in detail by different techniques. In vitro experiments revealed that β-CD/CUR-MBN enables the controlling of the curcumin release process, which is guided by the relaxation of the polymer matrix. Moreover, cytotoxic assays were performed to investigate the effect of β-CD/CUR-MBN on two cancer cell lines (melanoma and glioblastoma). The results showed that the polymeric membrane exerts higher cytotoxicity against these cells than free curcumin. Also, β-CD/CUR-MBN exerted a prolonged cytotoxic effect (up to 96 h), even using a low concentration (50 μg mL-1), indicating that the curcumin in the polymeric membrane showed increased bioavailability under the tested condition. β-CD/CUR-MBN was non-cytotoxic against normal cells suggesting a specific action of this material against target cancer cells. The results reported here allow ranks β-CD/CUR-MBN as a promising biomaterial to act as a local drug delivery system to treat cancer.
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Affiliation(s)
- Matheus S Gularte
- Laboratório de Tecnologia e Desenvolvimento de Compósitos e Materiais Poliméricos (LaCoPol), Universidade Federal de Pelotas (UFPel), Campus Capão do Leão s/n, 96010-900 Pelotas, RS, Brazil
| | - Rafael F N Quadrado
- Laboratório de Tecnologia e Desenvolvimento de Compósitos e Materiais Poliméricos (LaCoPol), Universidade Federal de Pelotas (UFPel), Campus Capão do Leão s/n, 96010-900 Pelotas, RS, Brazil
| | - Nathalia S Pedra
- Laboratório de Neuroquímica, Inflamação e Câncer (Neurocan), Universidade Federal de Pelotas (UFPel), Campus Capão do Leão s/n, 96010-900 Pelotas, RS, Brazil
| | - Mayara S P Soares
- Laboratório de Neuroquímica, Inflamação e Câncer (Neurocan), Universidade Federal de Pelotas (UFPel), Campus Capão do Leão s/n, 96010-900 Pelotas, RS, Brazil
| | - Natália P Bona
- Laboratório de Neuroquímica, Inflamação e Câncer (Neurocan), Universidade Federal de Pelotas (UFPel), Campus Capão do Leão s/n, 96010-900 Pelotas, RS, Brazil
| | - Roselia M Spanevello
- Laboratório de Neuroquímica, Inflamação e Câncer (Neurocan), Universidade Federal de Pelotas (UFPel), Campus Capão do Leão s/n, 96010-900 Pelotas, RS, Brazil
| | - André R Fajardo
- Laboratório de Tecnologia e Desenvolvimento de Compósitos e Materiais Poliméricos (LaCoPol), Universidade Federal de Pelotas (UFPel), Campus Capão do Leão s/n, 96010-900 Pelotas, RS, Brazil.
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15
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Chang S, Ma AWK, Lai H. New Insight into the Preparation of Starch‐Based Spherical Microgels with Tunable Volume. STARCH-STARKE 2019. [DOI: 10.1002/star.201800288] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Shing‐Yun Chang
- Department of Agricultural Chemistry, National Taiwan UniversityTaipei 10617Taiwan
| | - Anson W. K. Ma
- Department of Chemical and Biomolecular Engineering, University of ConnecticutStorrsCT06269USA
- Polymer Program, Institute of Materials Science, University of ConnecticutStorrsCT06269USA
| | - Hsi‐Mei Lai
- Department of Agricultural Chemistry, National Taiwan UniversityTaipei 10617Taiwan
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Effects of cationic starch in the presence of cellulose nanofibrils on structural, optical and strength properties of paper from soda bagasse pulp. Carbohydr Polym 2018; 194:1-8. [PMID: 29801816 DOI: 10.1016/j.carbpol.2018.04.026] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Revised: 04/03/2018] [Accepted: 04/05/2018] [Indexed: 11/21/2022]
Abstract
The effects of widely available bio-based additives, cellulose nanofibrils (CNFs) (0.1, 0.5, 1, and 2 wt%, based on dry weight of pulp) in combination with high degree of substitution cationic starch (CS) (0.2, 0.4, and 0.6 wt%, based on dry weight of pulp) on the structural, optical and strength properties of handsheet paper made from soda bagasse pulp were studied. Obtained results indicated that both the type and loading level of the additives had meaningful effects (99% confidence level) on the evaluated properties. Scanning electron microscope (SEM) images showed the retention and reinforcing effects of the additives on the paper network. Tensile and burst strengths increased continuously with increasing levels of the bio-additives up to 33% and 23% (0.6 CS/2% CNFs), respectively. However, the cellulose nanofibrils improved retention and drainage of the pulp at the lower levels (0.5 CS/0.1 CNFs), presumably due to complex interaction between CNFs and CS. Moreover, for the handsheet papers made of semi-bleached soda bagasse pulp, higher addition of CNFs improved the brightness of paper.
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Zanela J, Bilck AP, Casagrande M, Grossmann MVE, Yamashita F. Oat Fiber as Reinforcement for Starch/Polyvinyl Alcohol Materials Produced by Injection Molding. STARCH-STARKE 2018. [DOI: 10.1002/star.201700248] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Juliano Zanela
- Department of Food Science and Technology; Universidade Estadual de Londrina; Rod. Celso Garcia Cid (PR 445), km 380, P.O. Box 6001 Londrina 86051-990 Paraná Brazil
- Universidade Tecnológica Federal do Paraná; Campus Dois Vizinhos, Estrada para Boa Esperança, Km 04 Dois Vizinhos 85660-000 Paraná Brazil
| | - Ana P. Bilck
- Department of Food Science and Technology; Universidade Estadual de Londrina; Rod. Celso Garcia Cid (PR 445), km 380, P.O. Box 6001 Londrina 86051-990 Paraná Brazil
| | - Maira Casagrande
- Universidade Tecnológica Federal do Paraná; Campus Dois Vizinhos, Estrada para Boa Esperança, Km 04 Dois Vizinhos 85660-000 Paraná Brazil
| | - Maria V. E. Grossmann
- Department of Food Science and Technology; Universidade Estadual de Londrina; Rod. Celso Garcia Cid (PR 445), km 380, P.O. Box 6001 Londrina 86051-990 Paraná Brazil
| | - Fabio Yamashita
- Universidade Tecnológica Federal do Paraná; Campus Dois Vizinhos, Estrada para Boa Esperança, Km 04 Dois Vizinhos 85660-000 Paraná Brazil
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Lappalainen K, Kärkkäinen J, Niemelä M, Vartiainen H, Rissanen O, Korva H. Preparation of cationized starch from food industry waste biomass and its utilization in sulfate removal from aqueous solution. Carbohydr Polym 2017; 178:331-337. [DOI: 10.1016/j.carbpol.2017.09.054] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2017] [Revised: 09/07/2017] [Accepted: 09/14/2017] [Indexed: 10/18/2022]
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Sakeer K, Ispas-Szabo P, Benyerbah N, Mateescu MA. Ampholytic starch excipients for high loaded drug formulations: Mechanistic insights. Int J Pharm 2017; 535:201-216. [PMID: 29128422 DOI: 10.1016/j.ijpharm.2017.11.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Revised: 11/02/2017] [Accepted: 11/03/2017] [Indexed: 01/12/2023]
Abstract
Ampholytic starch derivatives are proposed as a new class of excipients carrying simultaneously anionic carboxymethyl (CM) and cationic aminoethyl (AE) groups on starch (St) polymeric chains. Three different types of derivatives were obtained by using the same reagents and varying only the order of their addition in the reaction medium: in one step method (OS) the two reactants were added simultaneously, whereas in two steps method (TS) either CMSt or AESt were prepared separately in the first step, followed by subsequent addition of the second reactant. It was found that all ampholytic derivatives were able to generate monolithic tablets by direct compression and allowed 60% loading of acidic (Acetylsalicylic acid), basic (Metformin), zwitterion (Mesalamine) or neutral (Acetaminophen) as drug models. The in vitro dissolution tests followed for 2 h in SGF and then in SIF, showed that the mentioned starch derivatives were stabilized by self-assembling and generated matrices able to control the release of drugs for about 24 h. The addition order of reagents has an impact on ampholytic starch properties offering thus a high versatility of this new class of starch excipients that can be tailored for challenging formulations with high dosages of several drugs.
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Affiliation(s)
- Khalil Sakeer
- Department of Chemistry and Pharmaqam Center, Université du Québec à Montréal, C.P. 8888, Branch A, Montréal, Québec H3C 3P8, Canada
| | - Pompilia Ispas-Szabo
- Department of Chemistry and Pharmaqam Center, Université du Québec à Montréal, C.P. 8888, Branch A, Montréal, Québec H3C 3P8, Canada
| | - Nassim Benyerbah
- Department of Chemistry and Pharmaqam Center, Université du Québec à Montréal, C.P. 8888, Branch A, Montréal, Québec H3C 3P8, Canada
| | - Mircea Alexandru Mateescu
- Department of Chemistry and Pharmaqam Center, Université du Québec à Montréal, C.P. 8888, Branch A, Montréal, Québec H3C 3P8, Canada.
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Sakeer K, Ispas-Szabo P, Mateescu MA. Self-Stabilizing Ampholytic Starch Excipients for Sustained Release of Highly Soluble Drugs: the Case Study of Metformin. AAPS PharmSciTech 2017; 18:2658-2672. [PMID: 28271374 DOI: 10.1208/s12249-017-0723-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Accepted: 01/18/2017] [Indexed: 12/24/2022] Open
Abstract
A new class of starch derivatives carrying cationic and anionic functional groups was developed aiming to provide an alternative for the formulation of highly soluble drugs. The new ampholytic starch derivatives were synthesized in two steps; first the CarboxyMethyl (CM) groups were grafted on starch chains followed by introduction of AminoEthyl (AE) groups. The final product, CarboxyMethyl-AminoEthyl-Starch (CM-AE-St), could be obtained in different degrees of substitution by varying the number of CM and AE groups. It was hypothesized that the simultaneous presence of anionic and cationic groups will generate a stronger self-stabilization of starch matrices and an improved control of drug release. Metformin (biopharmaceutical classification system-BCS, class I) was selected as model drug and monolithic tablets with 50 and 60% loading were prepared by direct compression of the active molecule with various CM-AE-St derivatives. The in vitro drug dissolution tests have shown that higher degrees of substitution for both CM and AE groups favor the ability of ampholytic CM-AE-St to control the drug release in simulated gastric fluid and in simulated intestinal fluid. Tablets based on CM-AE-St derivatives were compared to the commercial Glumetza® (50% loading). The drug release was controlled for 12 h exhibiting a similar Higuchi's model dissolution profile for the two dosage forms. Structural studies (FT-IR, 1H NMR, SEM, TG, X-ray diffraction) run on CM-AE-St derivatives put in evidence derivatization and self-stabilization phenomena. These new ampholytic starch derivatives offer a simple and convenient alternative to formulate and manufacture highly soluble drugs in a single step process.
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Chang SY, Lai HM. Effect of trisodium citrate on swelling property and structure of cationic starch thin film. Food Hydrocoll 2016. [DOI: 10.1016/j.foodhyd.2015.12.029] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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22
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Zinc chloride aqueous solution as a solvent for starch. Carbohydr Polym 2016; 136:266-73. [DOI: 10.1016/j.carbpol.2015.09.007] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Revised: 08/30/2015] [Accepted: 09/02/2015] [Indexed: 11/21/2022]
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23
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Bendaoud A, Chalamet Y. Effect of a supercritical fluid on starch-based polymer processed with ionic liquid. Eur Polym J 2015. [DOI: 10.1016/j.eurpolymj.2014.12.029] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Zheng J, Wang Y, Feng Z, Kuang Z, Zhao D, Jiao X. Preparation of cationic starch microspheres and study on their absorption to anionic-type substance. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2015; 71:1545-53. [PMID: 26442497 DOI: 10.2166/wst.2015.137] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Cationic starch microspheres (CSMs) were prepared from lab-made neutral starch-based microspheres using a cationic adsorbent, namely 3-chloro-2-hydroxypropyltrimethyl ammonium chloride, as the cationic etherifying agent. Detection by scanning electron microscopy, Fourier transform infrared spectroscopy (FTIR), and laser diffraction techniques revealed that CSMs had coarse surfaces with good sphericity and dispersibility. Differential thermal analysis showed the lower thermostability of the CSMs' main chains. Furthermore, scores of experiments confirmed that CSMs are capable of absorption to N-(phosphonomethyl) iminodiacetic acid (PMIDA), a type of anionic substance, which is the intermediate to the preparation of glyphosate, maximally up to 95.24 mg/g. Compared with the Freundlich isotherm model, the Langmuir isotherm model can better describe the absorption process. The kinetic study showed that the pseudo-second-order model demonstrated a better correlation of the experimental data in contrast with the pseudo-first-order model. It can be therefore concluded that the rate-limiting step was the chemical absorption rather than the mass transport.
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Li K, Liu H, Gao W, Chen M, Zeng Y, Liu J, Xu L, Wu D. Mulberry-like dual-drug complicated nanocarriers assembled with apogossypolone amphiphilic starch micelles and doxorubicin hyaluronic acid nanoparticles for tumor combination and targeted therapy. Biomaterials 2014; 39:131-44. [PMID: 25477180 DOI: 10.1016/j.biomaterials.2014.10.073] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2014] [Revised: 10/22/2014] [Accepted: 10/23/2014] [Indexed: 10/24/2022]
Abstract
A comprehensive strategy for the preparation of mulberry-like dual-drug complicated nanocarriers (MLDC NCs) with high drug loading and adjustable dual-drug ratio was developed. First, apogossypolone (ApoG2) amphiphilic starch micelles (AASt MCs) were prepared by self-assembly process, and doxorubicin (DOX) hyaluronic acid nanoparticles (DHA NPs) were prepared by DOX absorption with excess HA by electrostatic absorption. MLDC NCs were obtained by adsorption of 8-9 DHA NPs around one AASt MC via electrostatic interaction. UV-visible and fluorescence spectrophotometers were used to measure the entrapment efficiency and loading efficiency of the two drugs. Transmission electron microscope and dynamic light scattering method were used to observe the size distribution and morphology of the particles. The tumor-targeting feature caused by HA-receptor mediation was confirmed by in vitro cell uptake and in vivo near-infrared fluorescence imaging. MLDC NCs were found to possess a mulberry-like shape with a dynamic size of 83.1 ± 6.6 nm. The final encapsulation efficiencies of ApoG2 and DOX in MLDC NCs were 94 ± 1.7% and 87 ± 5.8% with respect to drug-loading capacities of 13.3 ± 1.2% and 13.1 ± 3.7%, respectively. Almost no ApoG2 release was found within 80 h and less than 30% of DOX was released into the outer phase even after 72 h. In vivo fluorescence imaging revealed that MLDC NCs had highly efficient targeting and accumulation at the tumor in vivo and was maintained for 96 h after being injected intravenously in mice. Low LD50 for the two drugs in MLDC NCs was found after acute toxicity test. One-fifth normal dosage of the two drugs in MLDC NCs exhibited significantly higher anti-tumor efficiency in reducing tumor size compared with free drugs combination or single drug-loaded nanoparticles individually, indicating that the mulberry-like dual-drug nanoplatform has a great potential in tumor therapy.
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Affiliation(s)
- Ke Li
- Key Laboratory of Biomedical Information Engineering of Education Ministry, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Hao Liu
- Key Laboratory of Biomedical Information Engineering of Education Ministry, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Wei Gao
- Key Laboratory of Biomedical Information Engineering of Education Ministry, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Mu Chen
- Key Laboratory of Biomedical Information Engineering of Education Ministry, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Yun Zeng
- Key Laboratory of Biomedical Information Engineering of Education Ministry, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Jiajun Liu
- Key Laboratory of Biomedical Information Engineering of Education Ministry, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Liang Xu
- Department of Molecular Biosciences, Department of Urology and Radiation Oncology, University of Kansas Cancer Center, University of Kansas, Lawrence, KS, USA
| | - Daocheng Wu
- Key Laboratory of Biomedical Information Engineering of Education Ministry, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China.
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Ashogbon AO, Akintayo ET. Recent trend in the physical and chemical modification of starches from different botanical sources: A review. STARCH-STARKE 2013. [DOI: 10.1002/star.201300106] [Citation(s) in RCA: 279] [Impact Index Per Article: 25.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Adeleke Omodunbi Ashogbon
- Faculty of Science, Department of Chemistry and Industrial Chemistry; Adekunle Ajasin University; Akungba-Akoko Ondo State Nigeria
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Bendaoud A, Chalamet Y. Effects of relative humidity and ionic liquids on the water content and glass transition of plasticized starch. Carbohydr Polym 2013; 97:665-75. [DOI: 10.1016/j.carbpol.2013.05.060] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2013] [Revised: 05/14/2013] [Accepted: 05/15/2013] [Indexed: 11/24/2022]
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29
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Gao J, Luo ZG, Luo FX. Ionic liquids as solvents for dissolution of corn starch and homogeneous synthesis of fatty-acid starch esters without catalysts. Carbohydr Polym 2012; 89:1215-21. [DOI: 10.1016/j.carbpol.2012.03.096] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2011] [Revised: 03/30/2012] [Accepted: 03/31/2012] [Indexed: 11/27/2022]
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Bendoraitienė J, Klimaviciute R, Zemaitaitis A. Preparation of high-substituted cationic starch in presence of organic bases. STARCH-STARKE 2012. [DOI: 10.1002/star.201200020] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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31
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Han F, Liu M, Gong H, Lü S, Ni B, Zhang B. Synthesis, characterization and functional properties of low substituted acetylated corn starch. Int J Biol Macromol 2012; 50:1026-34. [DOI: 10.1016/j.ijbiomac.2012.02.030] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2012] [Revised: 02/15/2012] [Accepted: 02/25/2012] [Indexed: 11/17/2022]
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32
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Synthesis and characterization of a novel potato starch derivative with cationic acetylcholine groups. Int J Biol Macromol 2012; 50:701-6. [DOI: 10.1016/j.ijbiomac.2011.12.031] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2011] [Revised: 12/19/2011] [Accepted: 12/24/2011] [Indexed: 11/20/2022]
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33
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Liu TY, Ma Y, Yu SF, Shi J, Xue S. The effect of ball milling treatment on structure and porosity of maize starch granule. INNOV FOOD SCI EMERG 2011. [DOI: 10.1016/j.ifset.2011.06.009] [Citation(s) in RCA: 108] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Cai X, Hong Y, Gu Z, Zhang Y. The effect of electrostatic interactions on pasting properties of potato starch/xanthan gum combinations. Food Res Int 2011. [DOI: 10.1016/j.foodres.2011.07.036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Xie W, Zhang Y, Liu Y. Homogenous carboxymethylation of starch using 1-butyl-3-methylimidazolium chloride ionic liquid medium as a solvent. Carbohydr Polym 2011. [DOI: 10.1016/j.carbpol.2011.03.047] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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36
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Xie W, Wang Y. Synthesis of high fatty acid starch esters with 1-butyl-3-methylimidazolium chloride as a reaction medium. STARCH-STARKE 2011. [DOI: 10.1002/star.201000126] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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37
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Naguleswaran S, Li J, Vasanthan T, Bressler D. Distribution of Granule Channels, Protein, and Phospholipid in Triticale and Corn Starches as Revealed by Confocal Laser Scanning Microscopy. Cereal Chem 2011. [DOI: 10.1094/cchem-04-10-0062] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Sabaratnam Naguleswaran
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta T6G 2P5, Canada
| | - Jihong Li
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta T6G 2P5, Canada
| | - Thava Vasanthan
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta T6G 2P5, Canada
- Corresponding author. Phone: 1-780-492-2898. Fax: 1-780-492-8914. E-mail:
| | - David Bressler
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta T6G 2P5, Canada
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Wang Y, Xie W. Synthesis of cationic starch with a high degree of substitution in an ionic liquid. Carbohydr Polym 2010. [DOI: 10.1016/j.carbpol.2010.01.042] [Citation(s) in RCA: 97] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Kim HS, Huber KC. Impact of A/B-type granule ratio on reactivity, swelling, gelatinization, and pasting properties of modified wheat starch. Part I: Hydroxypropylation. Carbohydr Polym 2010. [DOI: 10.1016/j.carbpol.2009.10.070] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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41
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Synthesis and characterization of synthetic polymer colloids colloidally stabilized by cationized starch oligomers. ACTA ACUST UNITED AC 2009. [DOI: 10.1002/pola.23287] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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42
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Effects of reaction conditions on the physicochemical properties of cationic starch studied by RSM. Carbohydr Polym 2009. [DOI: 10.1016/j.carbpol.2008.09.004] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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